I just noticed something odd and I wonder if someone knows what is happening.
I bought some green tea bags from o-cha. I made about 3 very green-green steepings with it yesterday. I did a fourth steeping today and it came out yellow.
Deciding that tea bag was finished, I put it in a clear glass bottle ( 16 fluid ounces ) and poured some left over room temperature water in. The liquid from the spent tea bag is green.
The first 3 steepings were done at 170F for about 1 minute. The fourth steeping was at 170F for 2 minutes.
I'm hoping by altering my technique I can get a 4th green steeping.